21267603

素因数分解:

$3^5\times 7^1\times {\mathrm{12503}}^1$

素因数の和:12525

約数の個数: 24

約数和(自身を含む): 36411648

約数和(自身を除く): 15144045

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 12503, 37509, 87521, 112527, 262563, 337581, 787689, 1012743, 2363067, 3038229, 7089201, 21267603]

約数ペア:

[(1, 21267603), (3, 7089201), (7, 3038229), (9, 2363067), (21, 1012743), (27, 787689), (63, 337581), (81, 262563), (189, 112527), (243, 87521), (567, 37509), (1701, 12503)]